Synthesis and polymer structure of [Zn(4,4 '-bipy){(i-PrO)(2)PS2}(2)](n) and thermal properties of ZnL{(i-PrO)(2)PS2}(2) (L = phen, 2,2 '-bipy, 4,4 '-bipy)

A new mixed-ligand complex, Zn(4,4'-bipy){(i-PrO)(2)PS}(2), was synthesized . Single crystals were grown and the structure of the complex was determine d by X-ray diffraction (CAD-4 diffractometer, MoKalpha radiation, 14807 F-h kb R = 0.0391). The crystals are monoclinic with unit cell dimensions a = 1 7.569(2), b = 26.253(5), c = 27.915(3) Angstrom, beta = 100.70(1)degrees, V = 12652(3) Angstrom (3), Z = 16, d(calc) = 1.361 g/cm(3), space group P2(1 )/n. The structure is formed from infinite zigzag polymer chains stretched along the a axis. The coordination polyhedron of the Zn atom is a distorted tetrahedron formed by two S atoms of two monodentate diisopropyldithiophos phate ligands and two N atoms of two bridging bidentate 4,4'-bipy molecules . When heated in vacuum, the compounds ZnL{(i-PrO)(2)PS2}(2) (L = phen, 2,2 '-bipy, 4,4'-bipy) are volatile.